what is mean by prmary key and foreign key and how can we
diffrentiate that?
Please answer me.
Advance thanks.

Answer Posted / ritesh singhq

primary key is a complete date for all the member and
subject like and employee and all the data like
sale : note book pen pencil eraser
foreign key is a complete data of particular 1 thing like
note book : company name , numn of note book , creation
date etc

Is This Answer Correct ?    4 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to create a new view in oracle?

622


How to count duplicated values in a column in oracle?

554


What is the data pump export utility?

648


I have a table called 'test' on source and target with same name, structure and data type but in a different column order. How can you setup replication for this table?

628


What is a dead lock in oracle?

598






What is a cursor variable?

580


How to define an oracle sub procedure?

602


What is an oracle user account?

582


What is the usage of synonyms?

593


How do we create privileges in oracle?

588


Design database draw er diagram for a certain scenario ?

4105


What are the limitations oracle database 10g xe?

572


Where is the export dump file located?

575


What are internal user account in oracle?

571


Explain joins in oracle?

561